Permanent deformation analysis of HMA mixtures using simple performance tests
Document Type
Conference Proceeding
Publication Date
12-1-2008
Abstract
The objective of this study was to evaluate the permanent deformation of Hot Mix Asphalt (HMA) mixtures based on two simple performance tests (dynamic modulus |E*|, flow number FN) and a Loaded Wheel Tracking test (LWT, Hamburg-type). Four plant-produced HMA mixtures were selected in this study. Those mixtures included two levels of nominal maximum aggregate size (12.5- and 25.0-mm) and two levels of mixture type (Superpave and SMA). Test results indicated that the |E*| values were sensitive to the nominal maximum aggregate size. Larger aggregates tended to have higher |E*| values at high temperatures. Furthermore, the ranking of the mixtures evaluated from the flow number tests was consistent with their use in the field. In addition, good correlation was observed between the results from the flow number and loaded wheel tracking tests. © 2008 Taylor & Francis Group, London.
Publication Source (Journal or Book title)
Efficient Transportation and Pavement Systems: Characterization, Mechanisms, Simulation, and Modeling - Proceedings of the 4th International Gulf Conference on Roads
First Page
601
Last Page
610
Recommended Citation
Mohammad, L., Obulareddy, S., Cooper, S., & Bae, A. (2008). Permanent deformation analysis of HMA mixtures using simple performance tests. Efficient Transportation and Pavement Systems: Characterization, Mechanisms, Simulation, and Modeling - Proceedings of the 4th International Gulf Conference on Roads, 601-610. Retrieved from https://repository.lsu.edu/civil_engineering_pubs/910